DE1034726B - Electrically conductive putty for attaching fittings to high voltage insulators - Google Patents

Electrically conductive putty for attaching fittings to high voltage insulators

Info

Publication number
DE1034726B
DE1034726B DEL19323A DEL0019323A DE1034726B DE 1034726 B DE1034726 B DE 1034726B DE L19323 A DEL19323 A DE L19323A DE L0019323 A DEL0019323 A DE L0019323A DE 1034726 B DE1034726 B DE 1034726B
Authority
DE
Germany
Prior art keywords
electrically conductive
voltage insulators
high voltage
putty
fitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEL19323A
Other languages
German (de)
Inventor
Max Boettger
Dipl-Phys Gerhard Otto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL19323A priority Critical patent/DE1034726B/en
Publication of DE1034726B publication Critical patent/DE1034726B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors

Landscapes

  • Insulators (AREA)

Description

Elektrisch leitende Kittmasse für die Befestigung von Armaturen an Hochspannungsisolatoren Es ist bekannt, bei Hochspannungsisolatoren, insbesondere Durchführungen, zur Steuerung des elektrischen Feldes zwischen dem Leiter und der Armatur den Isolierkörper an der Stelle seiner Außenfläche mit einer metallisierten Schicht zu versehen, an welcher er von der aufgekitteten und geerdeten Armatur umschlossen ist. Um hierbei eine ungleichmäßige Verteilung der Feldstärke und damit die Gefahr eines Durchschlages zu verhindern, muß zwischen Armatur und Außenmetallisierung eine elektrisch gutleitende Verbindung bestehen, Hierzu werde, beide Teile entweder durch Drähte oder Kontaktfedern miteinander verbunden oder die Kittmasse ist durch Graphit- oder Metallpulverzusatz elektrisch leitend gemacht.Electrically conductive putty for attaching fittings to High-voltage insulators It is known in high-voltage insulators, in particular Bushings to control the electrical field between the conductor and the Armature the insulating body at the point of its outer surface with a metallized one To provide a layer on which it is enclosed by the cemented and grounded armature is. To this an uneven distribution of the field strength and thus the danger to prevent a breakdown must be between the armature and the outer metallization There is a good electrical connection, for this purpose, both parts are either connected by wires or contact springs or the putty is through Graphite or metal powder additive made electrically conductive.

Die Erfindung bezieht sich auf eine solche durch Graphit- oder Metallpulverzusatz elektrisch leitend gemachte Kittmasse, vorzugsweise aus Schwefelzement, die als Bindemittel bei der Befestigung der Armatur an den vorbeschriebenen Hochspannungsisolatoren verwendet wird. Es hat sich gezeigt, daß zur Erzielung einer guten Leitfähigkeit der Kittmasse die Graphit- bzw. Metallpulverzusätze nicht in beliebiger Höhe vorgenommen werden können, da sonst die Bindekraft des Kittes herabgesetzt wird. Die Erfindung weist nun einen Weg, wie bei voll erhaltener Bindekraft des Kittes auch seine Leitfähigkeit stark erhöht werden kann. Erfindungsgemäß wird die Kittmasse zur weiteren Herabsetzung ihres ohmschen Widerstan.&s kurzzeitig einer zwischen der metallisierten Schicht und der Armatur angelegten elektrischen Spannung bis zum Durchschlag ausgesetzt. Dieser gewissermaßen als Formierung der Kittmasse zu bezeichnende Vorgang ruft zwischen den einzelnen verstreut liegenden Teilchen der Zusaitzpulver eine leitende Verbindung hervor, die an zahlreichen Stellen den elektrischen Anschluß der Armatur an die metallisierte Schicht herstellt und so eine gleichmäßige Feldsteuerung zur Folge hat. Durch die Formierung kann der ohmsche Widerstand um mehr als den Faktor 100 heruntergedrückt werden.The invention relates to such by adding graphite or metal powder electrically conductive putty, preferably made of sulfur cement, which as Binding agent when attaching the valve to the high-voltage insulators described above is used. It has been shown that to achieve good conductivity the additions of graphite or metal powder to the cement mass are not made in any amount otherwise the adhesive strength of the putty will be reduced. The invention now shows a way how, if the bonding force of the cement is fully retained, also its conductivity can be greatly increased. According to the invention, the putty compound is used for further reduction of its ohmic resistance. & s temporarily between the metallized layer and exposed to electrical voltage applied to the valve until it breaks down. This process, which can be referred to as the formation of the putty compound, calls between the individual scattered particles of the additive powder create a conductive connection out that in numerous places the electrical connection of the valve to the metallized layer and thus a uniform field control result Has. The formation can increase the ohmic resistance by more than a factor of 100 be pushed down.

Claims (1)

PATENTANSPRUCH: Durch Graphit- oder Metallpulverzusatz elektrisch leitend gemachte Kittmasse, die als Bindemittel bei der Befestigung der geerdete Armatur am Isolierkörper von Hochspannungsisolatoren, insbesondere von Durchführungen, benutzt wird, bei denen an der von der geerdet-en Armatur umschlosseen Außenfläche des Isolierkörpers eine metallisierte Schicht vorgesehen ist, dadurch gekennzeichnet, daß zur weiteren Herabsetzung dies ohmschen Widerstandes der Kittmasse dieselbe kurzzeitigeiner zwischen der metallisierten Schicht und der Armatur angelegten elektrischen Spannung bis zum Durchschlag ausgesetzt wird. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 293 224, 373 056. PATENT CLAIM: Putty made electrically conductive through the addition of graphite or metal powder, which is used as a binding agent when attaching the earthed fitting to the insulating body of high-voltage insulators, especially bushings, in which a metallized layer is attached to the outer surface of the insulating body enclosed by the earthed fitting is provided, characterized in that, in order to further reduce this ohmic resistance of the cement compound, it is briefly exposed to an electrical voltage applied between the metallized layer and the fitting until it breaks down. Considered publications: German patent specifications No. 293 224, 373 056.
DEL19323A 1954-07-09 1954-07-09 Electrically conductive putty for attaching fittings to high voltage insulators Pending DE1034726B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL19323A DE1034726B (en) 1954-07-09 1954-07-09 Electrically conductive putty for attaching fittings to high voltage insulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL19323A DE1034726B (en) 1954-07-09 1954-07-09 Electrically conductive putty for attaching fittings to high voltage insulators

Publications (1)

Publication Number Publication Date
DE1034726B true DE1034726B (en) 1958-07-24

Family

ID=7261359

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL19323A Pending DE1034726B (en) 1954-07-09 1954-07-09 Electrically conductive putty for attaching fittings to high voltage insulators

Country Status (1)

Country Link
DE (1) DE1034726B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE293224C (en) *
DE373056C (en) * 1923-04-07 Continentale Isola Werke A G High-voltage bushings and support insulators made of molded compound with conductive inserts made of molded compound

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE293224C (en) *
DE373056C (en) * 1923-04-07 Continentale Isola Werke A G High-voltage bushings and support insulators made of molded compound with conductive inserts made of molded compound

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